Improvement in lanterns



R. W. PROCTER.

LANTERN.

Patented May 16, 1876.

I fmkeizlzz:

N.PETERS, PHOTO LITNDGRAPH UNITED S A ES PATENT OFFICE.

ROBERT W. PROCTER, CLIFTON, NEW YORK.

IMPROVEMENT m LANTERNS.

Specification forming part of Letters Patent No. 177,422, dated May16,1876 application filed I March 31, 1876.

To all whom it may concern:

Be it known that 1, ROBERT W. PROCTER, of Clifton, Staten Island, NewYork, have invented an Improvement in Lanterns, of which the followingis a specification, reference being had to the accompanying drawingsforming part of the same.

Figure 1 is an exterior side view of a lantern containing myimprovement, and Fig. 2 is a vertical central section of the same.

My invention relates to that description of lanterns in which the lightis very completelyprotected against the movement of the exter-' nal air,so as to be prevented from being extinguished thereby, and moreparticularly to lamps designed for mast-heads and other lights on boardships and other vessels, when they are subjected to the action of highwinds and to violent movement and agitation from the motion of thevessel; and consists in the combination, with the lamp inserted and heldin the stationary bottom of the lantern by spring-catches or othersuitable device, of a supplementary movable bottom, whereby the lowerend of the body of the lamp is entirely lantern through an opening inthe stationary bottom 61, and secured in place by severalspring-catches, b, in the ordinary way. 0 is a supplementary movablebottom, preferably hinged on one side at c, and provided on the oppositeside-with a secure fastening or look,

d. Any suitable device for this fastening may be used, only it should beone that is entirely secure. D is the glass through which the lightisthrown from the front of the lantern.. It should be cemented in itsplace with air-tight joints, and, for convenient construction, as wellas to protect it against accidental Violence,

it should be set in a recess, as shown in the drawings. The apertures sfor the admission of air to feed the lamp should be near the bottom, onthe side opposite theglass, where they will not be subjected to thedirect force of the wind, the side opposite the glass being made flat,so that it may be secured to a plane support.

The ventilating-apertures e at the top of the lantern are protected bythe overhanging rim 9. The conical roof above the dome is formed of twoconcentric walls, h it, both joined to the dome, thus inclosing anair-chamber, open only at the top. The wall h is provided withventilating-apertures 2'. By this arrangement the air which may' beblown in through these apertures by the force of the wind is preventedby the inner wall h from being thrown upon the flame of the lamp, but isthereby deflected upward and out of theapertures 0, thereby, instead ofdoing mischief, contributing to create a draft of air upward from thebottom of the lantern, thus increasing the supply of air to the flamethrough the apertures s. j is a shield or curtain which hangson'theinside of the lantern, down over the apertures 8, whereby the air, as itenters the said a'pertures,'is deflected downwai d, and not permitted toblow directly on the flame of the lamp, whereby in a high wind thelamp-flame might be extinguished.

What I claim as my invention, and desire to secure by Letters Patent,is- Y The combination, in a lantern, of the body A, lamp B, secured inthe stationary bottom a by suitable fastening, and the movablesupplementary bottom 0, allconstructed to operate as and for the purposedescribed.

In witness whereof I have hereto set my hand this 27th day of March,1876.

, ROBERT WM. PROCTER.

Witnesses:

B. S. CLARK, A. S. Frron.

